Rear panel of an enclosure



FIG. 1 is a back, bottom, and left side perspective view of the rear panel of an enclosure, showing the new design;

FIG. 2 is a back, bottom, and right side perspective view thereof;

FIG. 3 is a back side elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a right side elevational view thereof.

The broken lines represent unclaimed portions of the rear panel of an enclosure and form no part of the claimed design. 

CLAIM The ornamental design for a rear panel of an enclosure, as shown and described. 